Automatic filter material collecting device and collecting method thereof

Abstract

The invention belongs to the technical field of sewage treatment, and provides an automatic filter material collecting device and a collecting method.The device comprises a controller, an integrated sensing filtering assembly electrically connected with the controller, a movement overturning assembly and a sewage disposal assembly, the integrated sensing filtering assembly is used for conducting multi-stage filtering on treated effluent containing leaked filter materials and collecting the filter materials, and the movement overturning assembly is used for overturning the filter materials; the integrated sensing filter assembly is used for monitoring the accumulation amount of the filter material and the pressure difference formed by the filter material in the integrated sensing filter assembly in the multi-stage filtering process; the movement overturning assembly is connected with the integrated sensing filter assembly, and the controller responds to the accumulation amount and controls the movement overturning assembly to drive the integrated sensing filter assembly to move and overturn the integrated sensing filter assembly so as to pour the filter material; and the controller responds to the pressure difference and controls the sewage cleaning assembly to clean the integrated sensing filtering assembly. According to the invention, leaked filter materials can be automatically collected, and the device is low in operation and maintenance cost.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and in particular to an automatic filter material collecting device and a collection method thereof. Background Art

[0002] During operation, the filter media at the bottom of the aerated biological filter at the front end of the intermediate water tank at the reclaimed water station used for sewage treatment was prone to leakage. This leaked filter media entered the inlet pipe of the constant-pressure water supply pump, causing the constant-pressure water supply pump to block and malfunction, preventing the water from the intermediate water tank from reaching the sand and carbon filter systems. This seriously affected the sewage treatment efficiency of the reclaimed water station and reduced the water output from the miscellaneous water tank. Frequent water supply pump failures also accelerated equipment damage and increased the workload of operators and maintenance workers.

[0003] Based on the above problems, the existing technology, such as the patent with publication number CN108101193B, discloses a method for using a filter material interception device for sewage treatment, in which the arc-shaped bent plate and the baffle are both stainless steel plates; the method of use includes the following steps: 1) assembly and position debugging: with the help of the waist-shaped adjustment hole on the vertical fixed bracket, the vertical fixed bracket is fixedly installed at a position 3 to 5 cm below the outlet weir pool wall, one end of the arc-shaped bent plate is installed on the horizontal fixed bracket, and the other end is installed on the vertical fixed bracket and 5 to 10 cm away from the outlet weir; the baffle is installed on the side of the vertical fixed bracket close to the wall, and the baffle and the bottom of the vertical fixed bracket form an angle of 30 to 60 degrees, which can completely block the reserved gap between the lower part of the bent plate and the wall when viewed from above; the automatic filter cleaning device is fixedly installed on the arc-shaped bent plate; 2) deployment of the automatic control system: a first speed sensor and a first pressure sensor are set at the connection between the arc-shaped bent plate and the horizontal fixed bracket, and a second speed sensor and a second pressure sensor are set at the connection between the arc-shaped bent plate and the vertical fixed bracket. , set a third speed sensor and a third pressure sensor at the middle position of the arc-shaped bend plate; connect the above-mentioned speed sensor and pressure sensor to the programmable controller data signal respectively; install a high-definition waterproof camera and an image processing module and an image storage module, and electrically connect the power supply component to the automatic control system and the filter cleaning device respectively; 3) Image acquisition and storage: the high-definition waterproof camera collects the high-definition image of the filter material on the surface of the backwash wastewater and processes it in the image storage module; 4) Remote communication: the programmable controller receives the speed value and backwash wastewater pressure value of the connection between the arc-shaped bend plate and the horizontal fixed bracket, the connection between the arc-shaped bend plate and the vertical fixed bracket, and the middle position of the arc-shaped bend plate obtained through data conversion, and the real-time detected speed value and backwash wastewater pressure value are compared with the speed threshold and backwash wastewater pressure threshold at the corresponding position, and the wireless network communication module is connected to the remote monitoring center or the smart mobile terminal for wireless communication.

[0004] Although the above method can intercept and filter the leaked filter material, the device used in this method has a complex structure, is difficult to install, and has high operation and maintenance costs. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic filter material collecting device and a collection method thereof, which can automatically collect leaked filter material and has low operation and maintenance costs.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: In the first aspect, the present invention provides an automatic filter material collection device, comprising a controller, an integrated sensing and filtering component, a motion flipping component and a pollution cleaning component electrically connected to the controller, wherein the integrated sensing and filtering component is used to perform multi-stage filtration on treated water containing leaked filter material and collect the filter material, and to monitor the accumulation amount of the filter material and the pressure difference formed by the filter material in the integrated sensing and filtering component during the multi-stage filtration process; the motion flipping component is connected to the integrated sensing and filtering component, and the controller controls the motion flipping component to drive the integrated sensing and filtering component to move and flip it in response to the accumulation amount to dump the filter material; the controller controls the pollution cleaning component to clean the integrated sensing and filtering component in response to the pressure difference.

[0007] According to the above technical means, the present application highly integrates the integrated sensing and filtering components, motion flipping components and cleaning components through the controller, realizing the automation of the entire process from filter material monitoring, collection, and dumping; the controller makes decisions based on the two key parameters of accumulation and pressure difference, and has intelligent control logic, which is more accurate and reliable. The integrated sensing and filtering components of the present application can not only realize multi-stage filtration and improve the interception efficiency of filter materials with different particle sizes, but also integrate sensing and monitoring functions, which can provide real-time feedback on the accumulation of filter materials and changes in pressure difference, providing a data basis for the automatic control of the device. The present application uses the pressure difference change to dynamically reflect the clogging status of the filter screen of the integrated sensing and filtering component, which can realize full coverage cleaning of the filter screen, ensure the long-term stability of the filtering performance of the integrated sensing and filtering component, and avoid the lag of manual cleaning.

[0008] Furthermore, the integrated sensing and filtering assembly includes a filter frame and a filter screen installed in the filter frame. The filter screen includes a coarse filter screen for coarsely filtering the treated water and a fine filter screen for finely filtering the water after coarse filtration. There is a first gap between the coarse filter screen and the fine filter screen, and a second gap between the fine filter screen and the filter frame.

[0009] Furthermore, the integrated sensing and filtering assembly also includes a first pressure sensor, a second pressure sensor and a gravity sensor. The gravity sensor is installed on the filter frame, the first pressure sensor is installed on the side of the fine filter screen facing the second gap, and the second pressure sensor is installed on the side of the coarse filter screen facing the first gap.

[0010] Furthermore, the motion flipping assembly includes a rotational drive mechanism, a first telescopic rod and a second telescopic rod. The rotational drive mechanism is used to drive the second telescopic rod connected thereto to perform rotational motion. One end of the first telescopic rod is connected to the second telescopic rod, and the other end of the first telescopic rod is rotationally connected to the integrated sensing and filtering assembly.

[0011] Furthermore, the cleaning assembly includes a nozzle for spraying washing water toward the integrated sensor and filter assembly.

[0012] A second aspect of the present invention provides a method for automatically collecting filter material, comprising the following steps:

[0013] Perform multi-stage filtration on the treated effluent containing leaked filter media and collect the filter media;

[0014] Real-time monitoring and feedback of the accumulation of filter media and the pressure difference formed by the filter media during multi-stage filtration;

[0015] When the accumulated amount reaches a preset weight, the accumulated filter material is dumped in response to a first feedback signal of the accumulated amount; when the pressure difference reaches a preset pressure difference, the equipment for multi-stage filtration and collection of filter material is cleaned in response to a second feedback signal of the pressure difference.

[0016] Furthermore, the method also includes: before performing multi-stage filtration on the treated effluent containing the leaked filter material and collecting the filter material, performing signal detection on multiple sensors installed on the equipment and detecting the reset state of the equipment.

[0017] Furthermore, the method also includes: when the accumulated amount reaches a preset weight and the pressure difference reaches a preset pressure difference at the same time, first dumping the filter material, and when the device is in a reset state, cleaning the device.

[0018] Furthermore, the method further includes: calculating the traction force required for dumping the filter material based on the accumulated amount, and stopping the dumping of the filter material when the traction force reaches a preset force value.

[0019] Furthermore, the equipment is cleaned by high-pressure water spraying.

[0020] The beneficial technical effects of the present invention are:

[0021] The device of the present invention intercepts leaked filter material to prevent it from entering the water supply pump, thereby solving the problems of frequent blockage, wear and failure of the water pump from the root, reducing the wear of key equipment such as the pump body, impeller, valve, etc. caused by the impact and friction of the filter material, reducing the frequency of equipment replacement, extending the life of the entire device, effectively improving the operating efficiency of the reclaimed water station, reducing operating costs, and ensuring the continuous and stable operation of the water supply system.

[0022] The present invention utilizes the coarse filter and fine filter of the integrated sensor assembly to automatically intercept and collect leaked filter material and fine debris, fundamentally preventing the filter material from entering the constant pressure water supply pump pipeline, significantly reducing the risk of water pump blockage, impeller wear and valve damage, and reducing equipment failure rate.

[0023] The device of the present invention integrates a gravity sensor, a first pressure sensor, a second pressure sensor and a controller to monitor the accumulation of filter material in real time, and realizes automatic lifting, dumping and resetting of the filter material through a motion flipping component. No human intervention is required throughout the process, achieving fully automatic operation, greatly reducing the workload of operators and repairmen, and reducing labor costs.

[0024] The present invention utilizes the first pressure sensor and the second pressure sensor to dynamically monitor the clogging status of the filter, and cooperates with the cleaning component to achieve full coverage cleaning of the filter, ensuring long-term stability of the filtering efficiency and avoiding the hysteresis of manual cleaning.

[0025] The method of the present invention performs a self-check before the device is put into operation and adopts a priority control logic. When the dumping condition and the pollution cleaning condition are reached at the same time, the filter material is dumped first, thereby further ensuring the continuity and reliability of the water supply.

[0026] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrating embodiments consistent with the present application and, together with the specification, serving to explain the principles of the present application. It is obvious that the drawings described below are merely some embodiments of the present application, and it is possible for a person of ordinary skill in the art to derive other drawings based on these drawings without inventive effort. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of the automatic filter material collection device for this application;

[0029] Figure 2 A top view of the integrated sensor-filter assembly for this application;

[0030] Figure 3 Side view of the integrated sensor-filter assembly for this application.

[0031] Reference numerals

[0032] 1: Pipeline; 2: Nozzle; 3: Drain hole; 4: Filter frame; 5: Filter screen; 6: Aerated biological filter; 7: Intermediate water tank; 8: First pressure sensor; 9: Second pressure sensor; 10: Gravity sensor; 11: First telescopic rod; 12: Second telescopic rod; 13: Platform; 14: Rotary drive mechanism; 15: Drive motor; 16: Flushing pump; 17: Cable; 18: Controller. DETAILED DESCRIPTION

[0033] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention pertains. It should be understood that certain features of the invention (described in the context of separate embodiments for clarity) may also be provided in combination in a single embodiment. Conversely, multiple features of the invention (described in the context of a single embodiment for brevity) may also be provided separately or in any suitable combination or, where appropriate, in any other described embodiment of the invention. Certain features described in the context of various embodiments will not be considered essential features of those embodiments unless the embodiment is inoperable without those elements. The invention is further described below through specific examples, but it should be noted that the specific process conditions and results described in the examples of the invention are only for illustration of the invention and are not intended to limit the scope of protection of the invention. Any equivalent changes or modifications made in accordance with the spirit and substance of the invention should be included within the scope of protection of the invention.

[0034] In the actual application of sewage treatment, during the operation of the reclaimed water station used for sewage treatment, the filter material at the bottom of the aerated biological filter at the front end of the intermediate water tank is prone to leakage. The leaked filter material enters the water inlet pipe of the constant pressure water supply pump, causing the constant pressure water supply pump to be blocked and the water in the intermediate water tank cannot reach the sand filter and carbon filter system.

[0035] In order to solve the above problems from the root, the present invention provides an automatic filter material collection device, including a controller 18, an integrated sensing and filtering component, a motion flipping component and a cleaning component electrically connected to the controller 18, the integrated sensing and filtering component is used to perform multi-stage filtration on the treated water containing leaked filter material and collect the filter material, and is used to monitor the accumulation amount of the filter material and the pressure difference formed by the filter material in the integrated sensing and filtering component during the multi-stage filtration process; the motion flipping component is connected to the integrated sensing and filtering component, and the controller 18 controls the motion flipping component to drive the integrated sensing and filtering component to move and flip it in response to the accumulation amount to dump the filter material; the controller 18 controls the cleaning component to clean the integrated sensing and filtering component in response to the pressure difference.

[0036] Furthermore, the present application highly integrates the integrated sensing and filtering components, motion flipping components and cleaning components through the controller 18, realizing the automation of the entire process from filter material monitoring, collection, and dumping; the controller 18 makes decisions based on the two key parameters of accumulation and pressure difference, and has intelligent control logic, which is more accurate and reliable. The integrated sensing and filtering components of the present application can not only achieve multi-stage filtration and improve the interception efficiency of filter materials with different particle sizes, but also integrate sensing and monitoring functions, which can provide real-time feedback on the accumulation of filter materials and changes in pressure difference, providing a data basis for the automatic control of the device. The present application uses the change in pressure difference to dynamically reflect the clogging status of the filter screen of the integrated sensing and filtering component, which can achieve full coverage cleaning of the filter screen, ensure the long-term stability of the filtering performance of the integrated sensing and filtering component, and avoid the lag of manual cleaning.

[0037] Further, if Figure 1 As shown, the device of the present application is installed in the intermediate water tank 7 of the reclaimed water station. The upper water treatment platform of the intermediate water tank 7 is the aerated biological filter 6. The aerated biological filter 6 and the intermediate water tank 7 are separated by a wall, and a drainage hole 3 connecting the aerated biological filter 6 and the intermediate water tank 7 is installed in the wall. The treated water of the aerated biological filter 6 flows into the intermediate water tank 7 through the drainage hole 3. The structural design of the drainage hole 3 of the present application and its spatial arrangement position are comprehensively considered in combination with the smoothness of water flow, the convenience of maintenance of the reclaimed water station, the anti-clogging design and the structural safety. Furthermore, a platform 13 is installed on the side of the intermediate water tank 7 away from the aerated biological filter 6. The height of the platform 13 is higher than the drainage hole 3, and the platform 13 has a certain load-bearing capacity, and a variety of equipment can be carried on it. The structural design of the platform 13 of the present application is comprehensively considered in combination with the overall structure and functional requirements of the intermediate water pool 7. For example, the platform 13 adopts a reinforced concrete rectangular structure, and the two sides of the platform 13 are fixedly connected to the pool wall of the intermediate water pool 7, such as steel bar connection; an equipment fixing base is provided on the surface of the platform 13; the height of the platform 13 is higher than the drainage hole 3 to ensure smooth drainage and prevent backflow, and to ensure that the water flow will not overflow the platform 13 when it is large; water inlet pipes 1, cables 17 and other facilities are often installed on the platform 13. The cable 17 can be laid with a bridge or pipe protection, and the joints are well waterproof and sealed.

[0038] Further, if Figure 1 and Figure 2 、 Figure 3As shown, the integrated sensor filtration assembly of the present application includes a filter frame 4 and a filter screen 5 installed in the filter frame 4. The filter screen 5 includes a coarse filter screen for coarsely filtering the treated water and a fine filter screen for finely filtering the water after coarse filtration. A first gap is defined between the coarse filter screen and the fine filter screen, and a second gap is defined between the fine filter screen and the filter frame 4. Furthermore, the coarse filter screen of the present application is made of a nylon composite filter screen with a pore size of 10mm to 20mm, which is used to intercept large particles of filter material such as ceramsite and gravel; the fine filter screen is made of corrosion-resistant and wear-resistant 316 stainless steel with a pore size of 1mm to 5mm, which is used to intercept fine debris. The filter frame 4 is made of stainless steel, which has strong corrosion resistance and wear resistance, and its dimensions are 1.5m×1m×0.8m. Specifically, the integrated sensing filter assembly of the present application adopts a double-layer gradient filtration design, and realizes efficient graded filtration through the synergistic effect of the coarse filter and the fine filter. The coarse filter is used as the first filtration barrier to mainly intercept the large-particle filter material carried by the effluent treated by the aerated biological filter 6. If these large-particle filter materials directly enter the subsequent water treatment unit, they will not only wear the equipment, but may also cause blockage. After being treated by the coarse filter, impurities with a particle size greater than 10 mm in the treated effluent are effectively removed, greatly reducing the burden on the subsequent fine filter. The fine filter of the present application serves as the second filtration barrier, responsible for intercepting fine debris and particulate matter, and can effectively intercept small and medium-sized particles that the coarse filter fails to remove, ensuring that the effluent water quality meets the requirements of the subsequent water treatment process. More specifically, the present application uses the first gap and the second gap to form a water flow buffer area, so that the water flow velocity is reduced and evenly distributed, avoiding direct impact on the filter screen to cause structural damage or reduced filtration efficiency; the existence of the gap also facilitates the accumulation of impurities and subsequent pollution cleaning.

[0039] Further, if Figure 1 and Figure 2 、 Figure 3As shown, the integrated sensor filtration assembly also includes a first pressure sensor 8, a second pressure sensor 9, and a gravity sensor 10. The gravity sensor 10 is mounted on the filter frame 4. The first pressure sensor 8 is mounted on the side of the fine filter screen facing the second gap, and the second pressure sensor 9 is mounted on the side of the coarse filter screen facing the first gap. Furthermore, the first and second pressure sensors 8 and 9 of the present application are Honeywell TruStability™ TSC series, with a range of 0kPa to 20kPa, an accuracy of ±0.5% FS, and an IP67 protection level. The gravity sensor 10 is a Mettler-Toledo PW15C3 load cell with a range of 0kg to 500kg, an accuracy of ±0.1% FS, stainless steel, and an IP68 protection level, suitable for humid and corrosive environments. Specifically, the gravity sensor 10 of the present application is preferably mounted at the bottom of the filter frame 4. The gravity sensor 10 is used to measure the mass of the filter frame 4 in real time to monitor the amount of filter material accumulated. When the filter material accumulation reaches a set threshold, the device can automatically initiate a filter material dumping procedure to prevent overload. The filter 5 is dynamically monitored for clogging status by using two pressure sensors installed on the upper and lower sides of the filter 5 .

[0040] Further, if Figure 1 and Figure 2 、 Figure 3 As shown, the motion flip assembly includes a rotary drive mechanism 14, a first telescopic rod 11, and a second telescopic rod 12. The rotary drive mechanism 14 is used to drive the second telescopic rod 12 connected thereto to perform rotational motion. One end of the first telescopic rod 11 is connected to the second telescopic rod 12, and the other end of the first telescopic rod 11 is rotatably connected to the integrated sensor filtering assembly. Furthermore, the rotary drive mechanism 14 of the present application is mounted on a platform 13, and a drive motor 15 is installed in the rotary drive mechanism 14. The drive motor 15 is a servo motor with a power of 1.5KW and a protection level of IP65. The first telescopic rod 11 and the second telescopic rod 12 are made of alloy steel, with a tungsten carbide coating (thickness 0.2mm) sprayed on the surface. It has high strength, strong corrosion resistance and wear resistance, and can meet the load-bearing and wear requirements of the equipment. The second telescopic rod 12 of the present application is connected to the rotary drive mechanism 14 at an angle of 30°. If the angle is too small, such as less than 20°, the second telescopic rod 12 will be subjected to excessive bending moment; if the angle is too large, such as greater than 40°, the transmission efficiency of the rotary drive mechanism 14 will be reduced. Therefore, the present application sets the angle of 30° to achieve a balance between transmission efficiency and stability. Specifically, the stroke of the second telescopic rod 12 of the present application is greater than the stroke of the first telescopic rod 11. The second telescopic rod 12 is used to drive the first telescopic rod 11 and the integrated sensor filter assembly to perform a lifting movement. The first telescopic rod 11 is used to drive the integrated sensor filter assembly to flip after adjusting its telescopic stroke to dump the accumulated filter material therein.

[0041] Further, if Figure 1As shown, the cleaning component includes a nozzle 2 for spraying washing water to the integrated sensing and filtering component. The present application also includes a pipe 1 and a flushing pump 16. The pipe 1 is fixedly mounted on the platform 13, the intermediate water tank 7, and the side wall of the wall. The flushing pump 16 is mounted on the platform 13 and is connected to the controller 18 via a cable 17. At least two nozzles 2 are installed on a section of the pipe 1 located on the wall, and the nozzle 2 is positioned above the drain hole 3. Its spray range ensures full coverage of the cleaning area of ​​the bottom and side filter screen 5 of the integrated sensing and filtering component in the initial position. The flow rate of the nozzle 2 in the present application is 15L / min, and the water pressure is 0.4mpa.

[0042] Furthermore, the controller 18 of the present application may be a PLC controller 18 or the like.

[0043] Furthermore, the working principle of the device of this application is as follows:

[0044] The treated effluent containing leaked filter media from the biological aeration filter 6 flows through the drain hole 3 into the integrated sensor filter assembly at the initial position (located below the drain hole 3). The treated effluent is filtered through the coarse filter and the fine filter in sequence, intercepting and collecting the filter media in the treated effluent. At this time, the gravity sensor 10 installed at the bottom of the filter frame 4 monitors the quality of the filter frame 4 (i.e., the amount of filter media accumulated) in real time and feeds back to the controller 18.

[0045] When the amount of filter material accumulated is greater than the set value, the controller 18 issues a command, the drive motor 15 starts, the second telescopic rod 12 contracts, and the first telescopic rod 11 and the filter frame 4 move upward;

[0046] When the filter frame 4 reaches the platform 13, the controller 18 issues a command, the rotary drive mechanism 14 rotates, driving the filter frame 4 to rotate, and the first telescopic rod 11 extends, rotating the filter frame 4 120 degrees to dump the accumulated filter material;

[0047] After the dumping is completed, the first telescopic rod 11 is retracted, the rotary drive mechanism 14 rotates, the second telescopic rod 12 is extended, and the filter frame 4 is reset to its initial position;

[0048] Since the pressure difference of the filter material is monitored in real time by the first pressure sensor 8 and the second pressure sensor 9 in the integrated sensing and filtering assembly, when the pressure difference reaches the set value, the controller 18 issues a command to start the flushing pump 16, and the nozzle 2 sprays high-pressure water (0.4 MPa) at a flow rate of 15 L / min for 2 minutes to clean the integrated sensing and filtering assembly;

[0049] When the controller 18 detects that the pressure difference is less than the set value, it determines that the cleaning is completed and stops flushing.

[0050] Furthermore, the device of the present application can effectively prevent water pump blockage and wear; it can operate fully automatically, reducing labor costs; two pressure sensors are used to dynamically monitor the blockage status of the filter 5, and a high-pressure flushing pump 16 is used in conjunction with a multi-angle nozzle 2 to achieve full coverage cleaning of the filter 5, ensuring long-term stability of the filtration effect and realizing intelligent pollution cleaning; the present application extends the equipment replacement cycle by reducing the impact and friction of the filter material on key equipment such as water pumps and valves; at the same time, the surface of the alloy steel telescopic rod is sprayed with a tungsten carbide coating, which is corrosion-resistant and wear-resistant, further reducing maintenance frequency and spare parts costs; the device of the present application can ensure that the water flow of the intermediate water pool 7 is stably delivered to the sand filter carbon filter system, ensuring the water output of the miscellaneous water pool, and improving the operating efficiency of the grey water station; the device of the present application can achieve energy consumption optimization, in line with the green operation concept.

[0051] The present invention also provides a method for automatically collecting filter material, comprising the following steps:

[0052] Perform multi-stage filtration on the treated effluent containing leaked filter media and collect the filter media;

[0053] Real-time monitoring and feedback of the accumulation of filter media and the pressure difference formed by the filter media during multi-stage filtration;

[0054] When the accumulated amount reaches a preset weight, the accumulated filter material is dumped in response to a first feedback signal of the accumulated amount; when the pressure difference reaches a preset pressure difference, the equipment for multi-stage filtration and collection of filter material is cleaned in response to a second feedback signal of the pressure difference.

[0055] Furthermore, the method of the present invention may be a method for using the above-mentioned automatic filter material collecting device.

[0056] Furthermore, the method of the present application also includes: before performing multi-stage filtration on the treated effluent containing leaked filter media and collecting the filter media, performing signal detection on multiple sensors installed on the device and detecting the device's reset status. Specifically, after the controller 18 is powered on, the device enters a self-test mode. The controller 18 checks whether the signals from the gravity sensor 10, the first pressure sensor 8, and the second pressure sensor 9 are normal; whether the signals from the travel switches of the first telescopic rod 11, the second telescopic rod 12, and the rotary drive mechanism 14 are normal; and whether the integrated sensor-filter assembly is reset to its initial position. More specifically, the self-test mode of the present application provides a safety mechanism. After the controller 18 is powered on, it automatically executes a self-test procedure to promptly detect abnormal conditions in key monitoring components such as the gravity sensor 10 and the pressure sensor, preventing misjudgments due to sensor failure. For example, if the gravity sensor 10 signals abnormally, the device can identify and prevent operation, avoiding the risk of overload. Similarly, testing the first pressure sensor 8 and the second pressure sensor 9 ensures the accuracy of filter pressure differential monitoring and prevents filter damage due to distorted pressure data. Secondly, the present application checks whether the encoder signal from the rotary drive mechanism 14 (servo motor) is normal, and then verifies the status of the travel switches of the first and second telescopic rods 11, 12. The present application then confirms whether the integrated sensor-filter assembly has returned to its initial position, establishing an accurate reference point for subsequent filter media metering and filtration operations. This calibration is crucial for maintaining the stability of treated water quality, as slight deviations from the initial position can accumulate into significant errors over multiple operating cycles.

[0057] Furthermore, the method of this application also includes: when the accumulated mass reaches a preset weight and the pressure differential simultaneously reaches a preset pressure differential, the filter media is first dumped, and then the device is cleaned when it is in the reset state. Specifically, when the device is operating normally, the unloaded mass of the filter frame 4 (reference value M0) is recorded. During operation, the accumulated mass of the filter media (ΔM = current mass M - M0) is calculated in real time. When ΔM ≥ 50 kg, the accumulated mass reaches the preset weight. Two pressure sensors monitor the pressure differential (ΔP) generated by the filter media during the multi-stage filtration process in real time. If ΔP ≤ 10 kPa, the device continues to operate; if ΔP > 10 kPa, the preset pressure differential is reached, triggering the cleaning process. More specifically, the method of this application utilizes priority control logic (coordinating cleaning with operating conditions) to further ensure the continuity and reliability of water supply. In traditional sewage treatment systems, cleaning operations often require system downtime, directly resulting in water supply interruptions. However, this application achieves coordination between cleaning operations and continuous operation by introducing a dual-parameter mechanism based on the accumulated mass (ΔM ≥ 50 kg) and the pressure differential (ΔP > 10 kPa).

[0058] Furthermore, the method of this application also includes calculating the traction force required to dump the filter material based on the accumulated amount, and stopping the dumping of the filter material when the traction force reaches a preset value. Specifically, the preset force value of this application is 500N. When the traction force is ≥500N, the dumping of the filter material is stopped to avoid plastic deformation of mechanical components such as the telescopic rod. This protection mechanism can extend the service life of key transmission components and significantly reduce maintenance frequency.

[0059] Furthermore, the method of cleaning the equipment in this application is high-pressure water spraying.

[0060] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. An automatic filter material collecting device, characterized in that: The invention comprises a controller (18), an integrated sensing filter component, a motion flip component and a cleaning component electrically connected to the controller (18), wherein the integrated sensing filter component is used for performing multi-stage filtration on treated effluent containing leaked filter material and collecting the filter material, and for monitoring the accumulation amount of the filter material and the pressure difference formed by the filter material in the integrated sensing filter component during the multi-stage filtration process; the motion flip component is connected to the integrated sensing filter component, and the controller (18) controls the motion flip component to drive the integrated sensing filter component to move and flip it in response to the accumulation amount, so as to dump the filter material; and the controller (18) controls the cleaning component to clean the integrated sensing filter component in response to the pressure difference.

2. The automatic filter material collecting device according to claim 1, characterized in that: The integrated sensing and filtering assembly comprises a filter frame (4) and a filter screen (5) installed in the filter frame (4), the filter screen (5) comprising a coarse filter screen for coarsely filtering the treated water, and a fine filter screen for finely filtering the water after coarse filtration, a first gap being provided between the coarse filter screen and the fine filter screen, and a second gap being provided between the fine filter screen and the filter frame (4).

3. The automatic filter material collecting device according to claim 2, characterized in that: The integrated sensing and filtering assembly further comprises a first pressure sensor (8), a second pressure sensor (9) and a gravity sensor (10), wherein the gravity sensor (10) is mounted on the filter frame (4), the first pressure sensor (8) is mounted on the side of the fine filter screen facing the second gap, and the second pressure sensor (9) is mounted on the side of the coarse filter screen facing the first gap.

4. The automatic filter material collecting device according to claim 1, 2 or 3, characterized in that: The motion flip assembly comprises a rotation drive mechanism (14), a first telescopic rod (11) and a second telescopic rod (12), wherein the rotation drive mechanism (14) is used to drive the second telescopic rod (12) connected thereto to perform rotational motion, one end of the first telescopic rod (11) is connected to the second telescopic rod (12), and the other end of the first telescopic rod (11) is rotationally connected to the integrated sensing and filtering assembly.

5. The automatic filter material collecting device according to claim 4, characterized in that: The cleaning component comprises a nozzle (2) for spraying washing water toward the integrated sensor filter component.

6. A method for automatically collecting filter material, characterized in that: The following steps are involved: Performing multi-stage filtration on the treated effluent containing the leaked filter material and collecting the filter material; Real-time monitoring and feedback of the accumulated amount of the filter material and the pressure difference formed by the filter material during the multi-stage filtration process; When the accumulated amount reaches a preset weight, the accumulated filter material is dumped in response to a first feedback signal of the accumulated amount; when the pressure difference reaches a preset pressure difference, the equipment used for multi-stage filtration and collecting the filter material is cleaned in response to a second feedback signal of the pressure difference.

7. The method according to claim 6, characterized in that The method further comprises: before performing multi-stage filtration on the treated effluent containing the leaked filter material and collecting the filter material, performing signal detection on a plurality of sensors installed on the device and detecting the reset state of the device.

8. The method according to claim 7, characterized in that The method further includes: when the accumulated amount reaches a preset weight and the pressure difference reaches a preset pressure difference at the same time, first dumping the filter material, and when the device is in a reset state, cleaning the device.

9. The method according to claim 6, 7 or 8, characterized in that The method further includes calculating a traction force required for dumping the filter material based on the accumulated amount, and stopping dumping the filter material when the traction force reaches a preset force value.

10. The method according to claim 9, characterized in that The equipment is cleaned by high-pressure water spraying.

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